JPS586256Y2 - Deep handling warning device for combine harvesters - Google Patents

Description

[Detailed explanation of the invention] Conventionally, before starting reaping and threshing work, the handling depth is adjusted in advance according to the grain culm length in the field, but the grain culm length can vary greatly even in the same field, so In such cases, it is necessary to further adjust the handling depth even during work.

However, since the supply port of a self-extracting combine harvester is located in a part that is difficult for the operator to see, it is possible to overlook the fact that the supply is being handled too much due to the supply condition. Not only does the amount of culm removed increase, which puts an overload on the handling barrel, but also the amount of straw waste generated increases, making it easy to cause so-called third scattering, where grains are discharged outside the machine along with the straw waste. In addition, there were drawbacks such as a marked decline in the sorting function.

Although the present invention can improve the above-mentioned drawbacks, it can be simply and easily obtained by using the conventionally attached tip guide side plate, etc., and it also has a switch and its operating part, etc. The purpose of this device is to provide a deep handling warning device for a combine harvester that operates accurately without the shell culm becoming entangled with the husks. A rotating shaft 14 that is substantially parallel to the meat direction is rotatably supported on a suitable support member on the stock side and on a tip guide side plate 13 of the supply port 10 on the tip side, and a portion of the rotating shaft 14 facing the tip insertion position. A sensing member is installed vertically so as to be movable and adjustable, and a switch actuating body is attached to a portion protruding outward from the tip guide side plate 13, and a switch actuating body is installed on the outer surface of the tip guiding side plate 13 so as to be connected intermittently by the rotation of the switch actuating body. Additionally, a switch 19 inserted into the alarm circuit is installed.

The present invention will be explained in more detail with reference to the embodiment shown in the drawings below. Reference numeral 1 denotes a threshing device mounted on a combine harvester stand 3 having a traveling device 2, and in front of it, a weeding body 4,
4, a reaping device consisting of a cutting blade 5, a culm lifting frame 6, etc. is provided, and a stock conveying belt 7 is provided between the reaping device and the threshing device.
and a panicle conveyance belt 8, and a handling depth adjustment device 9 consisting of a conveyance chain tilting toward the culm centering on the front part and a clamping rod is provided on the plant head conveyance path.

At the upper part of the supply port 10 at the front of the threshing device 1, there is a vertical ear guide side plate 1 whose stock side is inserted into the support frame 12 of the pincer rail 11 and whose ear side projects forward.
A rotating shaft 14 inserted through the shaft 3 is rotatably supported in a direction substantially parallel to the culm direction of the culm to which the shaft 4 is supplied. A sensing body 15 is formed by screwing a sensing piece 15a made of an elastic material such as rubber or synthetic resin with a screw 15 so that it can be adjusted forward and backward in the length direction.
A boss 15b at the base of is attached so as to be movably adjustable.

Further, a cam 18 constituting a switch actuating body is fixed to a portion of the rotating shaft 14 that protrudes outward from the tip guide side plate 13 (toward the cockpit 17 side), and a contact piece contacts the circumferential surface of the cam 18. The switch 19 is attached to the outer surface of the tip guide side plate 13.

Furthermore, the switch 19 is a warning lamp 20 (or buzzer).
and a delay relay 21,
The warning lamp 20 is mounted on the cockpit 17 so that it can be easily seen by the pilot.
It is installed at the top of the culm lifting frame in front of the culm.

A return spring 23 is attached to the end of the rotating shaft 14, and the return spring 23 and the cam 1
8, the switch 19, and the delay relay 21 are hermetically housed in a transparent switch box 24 made of synthetic resin, which is shown by the chain line in FIG.

In the drawing, 25 is a feed chain, 26 is a rubber scattering prevention plate suspended above the supply port 10, 27 is an inlet plate, 2
8 is an operation panel.

In the above-mentioned device, the handling depth is adjusted to be appropriate for the grain culm length in the field before or at the start of the harvesting and threshing operation.

The husks harvested by the reaping device are conveyed with the root part held between the pinch rail 11 and the feed chain 25, and the tip part is inserted into the supply port 10 of the threshing device 1 to be threshed.

At this time, if the handling depth is appropriate, the panicle will be sent in close to the sensing piece 15a of the sensing body 15, but if the culm length becomes a dog and the handling depth becomes too deep, the tip will push the sensing piece 15a. Therefore, the sensing body 15 is tilted toward the handling room, and the rotating shaft 14 is rotated.

At the same time, the cam 18 also rotates, so its large diameter part is the switch 1.
9 is also pressed to turn on the switch 19.

At that time, even if the detection signals are intermittent, if the time of each detection signal is short, that is, the handling depth is approximately appropriate as the tip repeatedly comes into contact with the sensing piece 15a or not. If it is close, the detection signal is negated by the delay relay 21, so the alarm lamp is not lit.

However, if a detection signal longer than the time set by the delay relay 21 is issued, the alarm lamp 20 is turned on.

At that time, the operator operates a handling depth adjustment lever (not shown) located near the pilot's seat 17, and tilts the handling depth adjustment device while looking at the tip of the culm that is supplied to the supply port 10. Adjust to appropriate depth.

When the warning lamp 20 is turned on, the sensing piece 15a is strongly pressed by the tip and rotates, so that it is tangential to the scattering prevention plate 26. Due to the force, the tip guide side plate 13 is moved as shown in Fig. 6a and b.
Since it is bent or curved toward the side, when removing straw waste stuck in the supply port 10, it can be bent in either direction and can be easily removed.

In addition, since it can deform to some extent in response to the pressure exerted by the shell culm, it is possible to prevent the shell culm from wrapping around or becoming tangled.

As mentioned above, in the present invention, the rotating shaft 14, which is substantially parallel to the direction of the culm of the culm to be fed, is placed above the supply port 10 of the threshing device 1 on an appropriate support member on the stock side, and on the supply port on the ear side. The sensing member is rotatably supported on the tip guide side plate 13 of No. 10, and a sensing member is movably and vertically installed at a portion facing the tip insertion position of the rotating shaft 14, and at a portion protruding outward from the tip guide side plate 13. A switch actuating body is attached, and a switch 19 is installed on the outer surface of the tip guide side plate, which is inserted into the alarm circuit and is turned on and off by the rotation of the switch actuating body. Even by looking at the condition, you can immediately and accurately know when the grain has been handled too deeply. Excessive handling can cause an abnormally large load on the handling barrel, scattering of grains, and a decline in the sorting function. can be prevented.

In addition, since the rotating shaft 14 to which the sensor 15 is attached, the switch, the switch operating body, etc. are mounted using the tip guide side plate 13 attached to the supply port, no new mounting members are required and the cost is significantly reduced. can be provided.

Furthermore, since the switch and the switch actuating body are attached to the outer surface of the tip guide side plate 13, it is possible to prevent straw debris from adhering to or accumulating on the switch and the switch actuating body. There is no problem with the supply of shell culms.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and are shown in Fig. 1.
Fig. 2 is a perspective view of the combine harvester, Fig. 2 is a plan view of the main parts showing one part, Fig. 3 is a side view of the same as above, Fig. 4 is an explanatory diagram of the operation, and Fig. 5 a and b are side views of the detection switch section. 6A is a rear view of the sensor, FIG. 6B is an exploded perspective view of the sensor, FIG. 7 is a perspective view showing the operation, and FIG. 8 is a circuit diagram.

Claims (2)

[Scope of utility model registration request] (1) Above the supply port 10 of the threshing device 1, a rotating shaft 14 that is approximately parallel to the culm direction of the culm to be supplied is installed on the stock side as an appropriate support member, and on the ear side as a tip guide of the supply port 10. It is rotatably supported on the side plate 13, and a sensing member is movably and vertically disposed at a portion facing the tip insertion position of the rotating shaft 14, and a switch actuator is provided at a portion protruding outward from the tip guide side plate 13. A deep-handling alarm device for a combine harvester, characterized in that a switch 19 is attached to the outer surface of the tip guide side plate and is connected and switched on and off by the rotation of a switch operating body and inserted into a circuit of an alarm device. (2) A deep handling device for a Zunbine according to claim 1, wherein a portion of the sensing member is made of an elastic material so as to be deflectable.